Architect Stuart Harrison discusses why, when it comes to houses, bigger is not always better.

Australians have the biggest houses in the world. With ever-increasing urban sprawl, we need to consider building smaller, more space-efficient homes. Stuart Harrison, author of ‘Forty-Six Square Metres of Land Doesn’t Normally Become a House’, explores how good design can create more sustainable buildings and how the constraints of space often result in the most innovative houses.